ICD-10 Code G24.0 – Drug induced dystonia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G24.0 – Drug induced dystonia
What it is
G24.0 identifies dystonia caused by a medication or other drug exposure. It refers to involuntary, sustained muscle contractions that produce abnormal postures or twisting movements.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings include acute muscle spasms, neck or eye deviation, jaw tightness, or other sustained abnormal movements after drug exposure.
When to use this code
Use this code when the record clearly links dystonia to a drug or medication. It fits adverse drug reactions, including acute dystonic reactions documented by the clinician. Code the condition only when the causal relationship is stated or strongly supported in the note.
Do not use for
Do not use G24.0 for dystonia with no documented drug cause. If the provider describes a different movement disorder, or the cause is uncertain, check documentation.
Coding tip
Look for explicit wording such as “drug induced,” “medication related,” or “acute dystonic reaction” before assigning G24.0.